Illinois · Nonprofit
INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP
INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP (Illinois) receives grants from 1 organization whose IRS filings report $0 to it, the largest being OPERATING ENGINEERS NATIONAL CHARITY FUND ($0). 0 of them have funded it in more than one year.
- Revenue FY2025
- $1.5M
- Funders on record
- 1
- Grants received
- $0
- Net assets
- $9.0M
What International Union of Operating Engineers Local 399 Building Corp does
Mission
To hold and manage real estate.
As stated on its FY2025 Form 990.
Program
Hold and manage real estate for the parent, international union of operating engineers local 399.
The program described on its FY2024 Form 990.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2018 to 2019, from $11M to $11M (−4%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
0% of INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP’s revenue is contributions — more earned-revenue than three-quarters of its peers (61% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 9 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Against its field
INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP's revenue grew 23% between 2017 and 2025.
this organization peer median middle 50% of peers· 2,127 community improvement nonprofits $1M–$10M, FY2025
Organizations like INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Illinois
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Governance
Footprint & structure
Part of a family of 5 related entities
- Iuoe Local 399 · exempt
- Iuoe Local 399 Building Corporation II · exempt
- Iuoe Local 399 Federal PAC · exempt
- Iuoe Local 399 Political Education Fund · exempt
- Iuoe Local 399 Staff 401(K) Plan · exempt
Screen this organization
A dated, signed PDF of the compliance screen for INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP?
- INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP (Illinois) receives grants from 1 organization whose IRS filings report $0 to it, the largest being OPERATING ENGINEERS NATIONAL CHARITY FUND ($0). 0 of them have funded it in more than one year.
- How many funders does INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP have?
- IRS filings report 1 organization giving $0 in grants to INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP.
- Who is the largest funder of INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP?
- OPERATING ENGINEERS NATIONAL CHARITY FUND is the largest funder on record, with $0 in grants. The full list of funders is on this page.
- How can an organization like INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 399 BUILDING CORP find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Illinois. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 1 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing